发明授权
- 专利标题： Optically clear UV and hydrolysis resistant polyester film
- 专利标题（中）： 透明的UV和耐水解聚酯薄膜
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申请号： US13156582申请日： 2011-06-09
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公开(公告)号： US08658285B2公开(公告)日： 2014-02-25
- 发明人: Carlos Hinton , Nao Yokota , Hirokazu Tajima , Roberto Siu
- 申请人： Carlos Hinton , Nao Yokota , Hirokazu Tajima , Roberto Siu
- 申请人地址： US RI N. Kingstown
- 专利权人： Toray Plastics (America), Inc.
- 当前专利权人： Toray Plastics (America), Inc.
- 当前专利权人地址： US RI N. Kingstown
- 代理机构： Morrison & Foerster LLP
- 主分类号： B32B27/18
- IPC分类号： B32B27/18 ; B32B27/36 ; B32B17/10 ; C08L67/02 ; C08L67/03 ; B29C47/00 ; B29C55/10 ; B29C55/12
摘要：
Biaxially oriented polyester films including polyester polymer, a carbodiimide hydrolysis stabilizer, and a UV absorber are described. The polyester films have a carboxyl end group concentration of 5-20 equivalents per ton, and a haze value of 2% or less. The films exhibit superior transparency and possess stable light transmission characteristics. Methods of making the films and articles produced from the films are also described.
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